Bus



FIG. 1 is a front and right side perspective view of a bus showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is an left side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom an view thereof; and,

FIG. 8 is a rear and right side perspective view thereof.

The broken lines in she drawings illustrate portions of the bus that form no part of the claimed design. 

CLAIM The ornamental design for a bus, as shown and described. 